Web-feeding mechanism.



G. B. STILWELL. WEB PBEDING M'EGHANISM APPLIUATION FILBDJUNE 7, 1907.

. i s. l, a)

APPLICATION FILED JUNE 7,1907.

-Patented July 12, 1910.

2 SHEETS-SHEET 2.

cHAELEs B. s'rILwELL, BAG MACHINE COMPANY, or

PENNSYLVANIA.

vINEB-FEEIID'IIl'Gr MECHANISM. v

0E WAYNE, PENNSYLVANIA, AssIeNo'It To `UNION PAPER, PHILADELPHIA, PENNSYLVANIA, A CORPORATION oP Patent-,ea July ia, iaio.

Application iled June 7, 1907. Serial No. 377,678.

'paper bag machines and the like, the paper or otherI material printed, or otherwise worked upon is supplied in the form of a continuous web drawn from aroll.

The object of my inventionws to simplify* and improve mechanism for so attaching lthe outer end of a spare roll of material to a web being drawn from a roll of material in use, that the supply from vthe last mentioned roll may stop as from vexhaustion 4of the roll without interfering with thecontinuous advancement of the continuous web.

In carrying out my invention, I first -attach the flap or outer end of the spare roll to the body of the roll by a bond of paste or the like, strong enough to hold the web in place when the roll is rapidly rotated in the direction in which it tends to unwind. After the end of the roll is thus anchoredin place, I set the roll in rotation gradually bringing its peripheral speed up to a parity with the speed at which the web fed from the roll in use travels. I then bring the periphery of the rotating spare roll and the advancing web from the roll in use into contact with suicient pressure so that a bond will be formed between the end of the spare roll and the advancing web bypaste supplied in any suitable manner, the bond formed being of sufcient strength to cause the end of the spare roll to be detached from the body' of the roll and fed forward b y the web from the roll in use. Usually I attach the two webs before the roll in use is entirely exhausted, and

sever the web from the roll in use or stub roll just back of the point of attachment to the other roll at or about the time at which the webs ofthe two rolls are connected together.

By bringing the spare roll up to speed before attaching it to the web of the roll in use, I avoid the shock and disruptive strains which would occur if it were attempted to set the` the spare roll up the instant at which the two webs were connected together. Mechanism for bringing to speed before the webs of the two rolls areconnected is` not claimed i spareroll in rotation at the proper speed in broadly herein, however, as it has beenv dis` v closed and broadly claimed in my'prior' Patent 808,883, granted Jan. 5, 1906. 4 g

The present invention is characterized, however, by-various'novel features of construction and arrangement nf the mechanisms for bringing the spare roll up to speed, for making the connection between the webs from the two rollsand for severing the web fromr the old roll.

The novel method of manipulation disclosed herein forms thesubject matter of my other application Serial Number 377,679 4' filed of even date herewith.

The 4various features ofnovelty which characterize the present invention are specifically pointed out in the claims annexed to and 'forming a part of this specification.

For a better `understanding of my invention,

however, reference may be had to the accom` panying 'drawings and descriptive matter in which I have illustrated and descirbed one form of machine embodying my invention and particularly designed for feedingpaper to rintin presses, bag machines or.y the like.

f the rawings, Figure 1 is a side elevation of the machine in the normal running position with some parts removed. Fig. 2 is a view similar to Fig. l1 but showing the parts in the position occupied at one stage ofthe operation 'of putting a spare roll into service. Fig. 3 is a plan view of the machine. Fig. 4 is a 'rear end elevation with parts broken away. Fig. 5 is a partial section on the line 5-5 of Fig. 1,w ith the parts separated to better show the construction,

and Fig. 6 is a perspective view of a 4spare.

or fresh roll ofV paper prepared for use.

` In the drawings, A represents the. frame work of the machine, comprising legs A1, side rails A2, standards A? at the rear end of the machine and arms or brackets A4 eX- tending from the standards A3. Each rside rail has attached to it pieces A5 which form a trough-like guideway in which is located a feed screw B.v Preferably the guideways are downwardly inclined fromv the front of the machine, as shown. The feed screws are journaled at their -ends in boxes B1 and carry at their lower ends bevel gears B2 paper web E1 engaging the forward en shaft in the desire it 'to the When it is desired to utilize'the spare roll which mesh with bevel gears B3 secured to a cross shaft B1. To theupper end of one of the feed-screws is connected a crank B5 by means of which and -the'connecting .ear-

' ingthe feed screws may be simultaneiisly rotated l -paper roll is' delivered `to the ma` ,l Each chine with a supporting shaft C axially securedin it. The shaft is journaled in half open boxes D having shouldersD1 resting upon the upper edges of the sides A5 of the guideways -and are provided each with a portion D2 depending between the sides of the guideway and threaded to form a halfv nite direction with respect tothe outer or ilalp end of thestrip of paper forming'the ro f The adjustment mag' be made by turning the position relative to the roll before clamping the and shaft together or by adjustably secur'ngthe collar 'C2 in the desired position on the shaft.

The normal position of the roll use E from which paper is being fed is that occupied by the full roll in Fig. 1 and the small roll in Fig. 2, the paper web E1 being drawn from the roll over the idler roll F journaled in the brackets A1. I

The roll in use may'be rotated and the advanced in any suitable manner as lby means of drawin rolls not shown i? of. the web E1. To obtain the desired tension, a suitable friction device engages shown, which may be carried by the outer end of the shaft.

The spare roll E2 has its shaft C mounted in boxes D placed at. the upper and left hand 'ends of the guideways as seen in Fig. Preparator to being put into service,

the flap end o the paper on the spare roll E2 is lightly securedto the body of the roll as by a paste bond formedvby pastin its forward edge. to thebody of the rol points E3, see Fig. 6. At this time also the outer surface of the flap end of the roll may be supplied with paste at E4 for connecting web drawn from the other roll.`

E2 it is rotated in its boxes D to give it a peripheral speed substantially equal to the advancing speed of the web E1 the roll E. The means for graduallybringingthe spare roll up to the desired speed driving pulley G; cenincludes a friction trally located below the new roll and car'- or a purpose hereinafter explained.v vtheposition shown in l A carried, by `the side' frames A2.

' a trip lever I3 a pulley C* not drawn from i yried a shaft :journaled in the front by a pulley G2 and belt'y legs A1 and driven Grs with a peripheral speed equal to 'the' feed of the paper web E1'. Arms H secured to a shaftH1 Journaled in the front le s A1 port at their-outer endsI movab e journal boxes H2`for a shaft H2 on` which is mounted a friction -roll H2.

Normally the roll H3 is in the position shown in Fig. l. The operating arm H1 connected to the shaft H1 serves as a means for rotatingthe shaft H1 to carrythe roll H3 into the position shown in Fig; 2 in which it is driven' by the roll G and in turn engages and drives the spare roll of lpaper .with a equal -to the linear velocity of the web E1 drawn :from the roll in use. The shaft H1 has looselyV journaled on it near its ends arms I. The arms I are normally held down in the position shown inFig. 1 by the weight of the roll H3 and parts connected to it acting througharnis H5 secured to the shaft H1 and provided with lugs H6 engaging the arms `Ir When .the shaft H1 is rotated into Fi 2, however, the springs I1 move the arms up against stops One of the arms I is provided at its 'free end withl a bracket-like extension I2 on which is pivoted having its end I4 toward the roll heavier than the other end I5. hanging lug I6 carried by the lever I3 normally engages the bracket I2 as ishown in Figs. 1 and 2 to hold the lever-I3 in the position relative to -the ,arm\ I there shown.

held by gravity peripheral velocity The over- When the arms I are in *the position shown iny Figf2, the end IJof the trip lever is in position to be engaged and elevated once in l each rotation of the spare roll E2 bythe arm C2.

AA striker or cutting off blade J is carried by arms J1 secured to ag shaft J2 journaled in the outer ends of the brackets A1. shaft J2 also has secured `to-it an arm J 2 to which one end ofv a tension spring J 4 is 'connected.V The other end of the tension-spring is connected to the corresponding arm: A" of also has sethe bracket A4. The shaft J 2 cured to it an arm J 5 located in the same plane with the lever` I3'and provided with a hook adapted to engagen the end I5 of the when the parts are in the position shown vin Fi 2. The shaft J2 and parts connected to it are normally held in the position shown inf Fig. l by means of a lock lever K provided with a detent K1 engaging the striking blade J. The forward ends of the brackets A-4 alsohave journaled in them a shaft 'L having secured to it an operating arm L1, spring engaging arms L2 carrying t-he idle roll L5. connected to the brackets A4 and normally vhold the shaft and parts The Connected Vto it in the position shown in Fig. 41, but the parts may be moved from this position to that shown inv Fig. 2, by manual operation of the lever L1:

In connecting the spareroll to the web E1L being drawn from the roll in use, I-I1 is rst turned to Vmove the parts carried by it into the position shown in Fig. 2, whereby A the spare' roll speed. The handle L? is then turned to move the roll L into the position shown in Fig. 2l and the striker blade is released from the detent K1 by the operation of the lever K. The last mentioned operations are so timed that the striker is released from the detent K1 and the roll L3 brought into the position shown in Fig. 2 'just after the arm C3 has moved o ut of engagement with the lever end I and so that the parts are in proper position before the .arm C3 again engages the lever end I4.

` to the guide'roll Fig. 2 the lever'I3 l here to the advancing web and be trn loose from its slight anchorage to the body of the roll The lock lever0 K may be released by direct manual actuation or preferably by fan 'arm L7 set to engage the lever K and release the striker when the roll L5 moves into close proximity to the spare roll. When the lever I4 is engaged by the arm C3 after all the parts are brought vinto the position shown in is turned to release'the arm J3 and the springs J4 then move the arm J3 and striker blade J' from the full line position shown in Fig. 2 to the dotted line position. The movement of the striker mechanism is arrested by the engagement of the striker blade or frame with stops I3 carried by the ends of the arms I. The impingement of the striking blade on the tenseweb of paperEl passing from the roll E1 L5 severstlie paper. Preferably tle arms I carry a serrated blade I7 cooperating with the blade J.

As the flap end of the paper of the spare roll comes in contact with the paper pass-v ing over the roll L5, the paste previously smeared over relatively large portions E4 of its outer surface causes theilap end to adas indicated at E5 and to advance with and form a continuation ofthe web El. The y arm C3 is so set relative to the flap end of the roll E2 that the paper from the roll lE is severed at the proper point relative to the jointbetween the webs of the two rolls.

Preferably` the idler roll H3 is kept in opp erative contact with the roll of paper until the wet paste bond between the two webs passes into the draw rolls or the like for advancing the web." After this,the roll H3 is moved back to its normal inoperative position. The old roll is then taken out of the machine, as are the boxes D in which it has been supported and the feed screws are rotated to move the fresh or spare roll, now become the roll in use, from the startling pothe shaft` is brought up to web of the reserve roll.

sition shown in Fig. 2 into the working position shown in Fig. 1. It should be' eX- plained that in applying the paste to the outer surface of the flap end of the new roll, only'portions of the flap end at the sides of the roll E3 are covered with paste.

The rolls of paper employed aie usually not uniform in diameter. On this account, the arrangement employed herein for setting the spare rolls in rotation by an idler engaging the periplieries of the spare roll and the belt driven friction driving roll isespeciallyl advantageous since the ultimate peripheral speed imparted to the spare roll is exactly equal to that of the driving friction roll, and is independent of the diameter of the spare roll. By making the friction driving roll narrow relatively to the length of the spare roll, the paste portions E4 ma be made as large as necessary without interfering with the driving roll. By manipulation of the feed screws, the position of the spare roll maybe readily adjusted so that the roll L5 will engage it at the proper stage of its movement about the shaft L so that the lock lever K will be actuated at the proper point.

While the form of my invention disclosed herein is quite satisfactory, it will be understood by those skilled in the art that changes may be made in it without departing from the spirit of my invention.

Having now I. claim as new and desire to secure by Letters Patent is,

1. In a web feeding mechanism, having bearings for a roll in use and for a spare roll, the combination with means for revolving the spare -roll with a peripheral speed substantially equal to the traveling speed of the lweb from the roll in use, means for causing an engagement between the advancing web drawn from the roll in use and the periphery of the spareroll, whereby paste applied to the contacting surfaces causes the webs of the two rolls to adhere.

2. In a web feeding mechanism having bearings for a roll in use and for a spa-re roll, means for advancing a web drawn from a roll in use, means for rotating the other -roll with a peripheral speed substantially equal to theitraveling speed of the web advanced, means for detlecting the web drawn from the roll in use against the periphery of said other-roll, whereby it may be paste connected tothe web of the/reserve roll, and means for severing the webfrom the roll in use back of the point of' attachment of the 3. In a web feeding mechanism having vmeans for supporting a roll in use in a norvmal position, means forsupporting a spare roll in a starting position and means for transferring the spare roll from the starting position to said normal position when the described my invention, what l isoV Vrotating reserve roll without ,the two rolls,

lfeed screws,

roll in use is removed, means for drawing the web from the roll in use through a path normally at one side of the reserve roll, means for. rotating the reserve roll and means for deflecting the web drawn from 'the roll in use into contact with the periphmeans for deecting the web drawn frm the roll in use against the periphery of the interfering with the advancement of the web, whereby the advancing web may be attached to the web of the reserve roll by paste and means 'for severing the web from the roll inuse' at a predetermined distance back ofthe joint, said means comprising a striker, means for actuating it in the severing direction, a` lock normally holding the striker in an inoperative position, a second lock for holding the striker ,out of service and means moving with the spare roll for tripping said second lock at a' predetermined pointy in the rotation ofthe" reserve roll, j

5. In a paper feeding mechanism lhaving bearings forv supporting a roll in use and a reserve roll, in combination with means forl rotating the reserve roll and means for atroll in-use to theweb of the reserve' roll, means for. severing the web from the roll in use back of the said severing means comprising a spring actuated severing device', a manually controlled lock for normally holding the device out of service, and a second automatically controlled device for prevent-A ing the' severing device from 'severing the paper except when the Arotating reserve roll comes into a predetermined position.

6. In a paper feeding mechanism, apair of parallel inclined ideways and a feed screw parallel to anclhdjacent each guideway, means for simultaneously rotating the and web roll shaft boxes slid'- inglymounted on said guideways and provided with open nut portions engaging said feedscrews.

7.- In a web feeding mechanism, having bearings for* a roll in use, and for-a spare roll, mechanism for rotating thespare. roll, said mechanism comprising a friction driving roll,"means for rotating.4 it ywith a pethe advancing ripheral speed equal to the speed of the advancing web drawn from the roll in use, a movable friction idler roll, and means for moving it into and out of the position in which it engages the peripheries of said driving roll and said spare roll, and means for attaching the outer end of the web of the rotating spare roll to the advancing web from' the roll in use. Y

8. In a web feeding mechanism having bearings for a roll in use and for a spare roll, a friction driving roll, means for rotating it with a peripheral speed equal to the advancing speed of the web drawn'from the' roll in use, a pivoted idler roll normally held out of engagement with the drivingroll an`d the spare roll, means for moving said idler into t-heposition in which it engages the peripheries of the driving roll and the spare roll, whereby the latter is set in rotation with the desired speed, a trip lever brought'into operative position during, and by the means for causing, the rotation of the spare roll, an arm carried by the spare roll for tripping said trip lever once during each revolution of the spare roll means for attaching the 'outer end of the rotating spare roll to'the advancing web'from the`roll in use, and means for. severing the web from the roll in use, said means including a spring actuating striker adapted to engage said trip lever, bn't released therefrom when said lever I 1s tripped by the spare roll-carried arm. I taching the advancing web drawn from the" i 9. In aI web feeding mechanism having' bearings for a roll in use and for a reserve roll, meansl for rotating the reserve roll, means for deflecting the web ydrawn, from the roll in use against the peripheryof the rotating reserve roll without interfering with the advancement of the web, whereby web may be 4attached tothe web of the reserve roll "by paste and meansV for severing the web from the roll in use at a predetermined distance back of/the joint, said means comprising a striker, means for actuating it in the severing direction; a lock normally holding the Striker in an inoperative position', means actuated-,b the web deiiecting meanslfor releasingfsaid lock, a j

second lock for holding the service and means l 'moving with the -spare roll for tripplng saidfsecond`-lock at a prepoint in the rotation of .the ref l f determined serve roll. t y

` CHAILES- B. STILWELL. Witnesses: l v ARNOLD KATz,

gD. STEWART.,

striker out of 

